US Patent Issued to Outdoor Wireless Networks on Dec. 2 for "Compact hybrid couplers having strong broadband coupling for base station antenna systems" (Chinese, Indian Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,191, issued on Dec. 2, was assigned to Outdoor Wireless Networks LLC (Richardson, Texas).

"Compact hybrid couplers having strong broadband coupling for base station antenna systems" was invented by Ravi Dutt Gupta (Goa, India), Kumara Swamy Kasani (Goa, India), Ligang Wu (Suzhou, China), Haiyan Chen (Suzhou, China), Ting Zhang (Suzhou, China) and Fangwen Wan (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A four-port RF hybrid coupler includes a substrate having first and second primary traces and first and second coupled traces on a first surface thereof. The first coupled trace has: (i) a first end configured to provide a first degree...